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82
Engine
Twin-cylinder 4-stroke "L" 1000cc engine with
Desmodromic system, with electronic fuel injection, air-
cooled.
Bore:
94 mm.
Stroke:
71.5 mm.
Total displacement:
992 c. c.
Compression ratio:
10.5 ± 0.5:1
Max. power at crankshaft (95/1/EC), kW/HP:
62 Kw (84 HP) at 8000 rpm
Max. torque at the crankshaft (95/1/EC):
84 Nm - 8.5 Kg at 5000 rpm
Max. rpm:
8700 rpm
Importante
Do not exceed specified rotation speed limits under
any running condition.
Timing system
Desmodromic
(type) with two valves per cylinder,
operated by four rockers (2 opening rockers and 2 closing
rockers) and an overhead camshaft. It is operated by the
crankshaft through spur gears, belt rollers and toothed
belts.
Desmodromic timing system
(fig. 75)
1) Opening (or upper) rocker arm.
2) Opening rocker arm shim.
3) Split rings.
4) Closing (or lower) rocker arm shim.
5) Return spring for lower rocker arm.
6) Closing (or lower) rocker arm.
7) Camshaft.
8) Valve.
1
2
3
4
6
5
7
8
fig. 75
DUCum_1000DS####03_###e.book Page 82 Wednesday, March 12, 2003 4:33 PM
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